CY-Buity 4pcs Black New PlasticScrew M3/8 Durable Fishing Rod Holder Tackle Gripper Rest Thread U-shaped head,front opening size:40MM,lenght:68MM. Both protect the pole is not wear, and increased the anti-slip clip reed performance, the rod is not easy to slide. Material:Nylon+304 Stainlee steel. Ideal for all types of bracket to use. Rod rest heads with screw thread.Screw:British M3/8.